Cisco Catalyst 3750 User Manual

2-809
Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
srr-queue bandwidth shape
srr-queue bandwidth shape
Use the srr-queue bandwidth shape interface configuration command to assign the shaped weights and
to enable bandwidth shaping on the four egress queues mapped to a port. Use the no form of this
command to return to the default setting.
srr-queue bandwidth shape weight1 weight2 weight3 weight4
no srr-queue bandwidth shape
Note
Syntax Description
Defaults Weight1 is set to 25. Weight2, weight3, and weight4 are set to 0, and these queues are in shared mode.
Command Modes Interface configuration
Command History
Usage Guidelines In shaped mode, the queues are guaranteed a percentage of the bandwidth, and they are rate-limited to
that amount. Shaped traffic does not use more than the allocated bandwidth even if the link is idle. Use
shaping to smooth bursty traffic or to provide a smoother output over time.
The shaped mode overrides the shared mode.
If you configure a shaped queue weight to 0 by using the srr-queue bandwidth shape interface
configuration command, this queue participates in shared mode. The weight specified with the
srr-queue bandwidth shape command is ignored, and the weights specified with the srr-queue
bandwidth share interface configuration command for a queue come into effect.
When configuring queues for the same port for both shaping and sharing, make sure that you configure
the lowest numbered queue for shaping.
This command is not available on a 10-Gigabit Ethernet interface.
Note The egress queue default settings are suitable for most situations. You should change them only when
you have a thorough understanding of the egress queues and if these settings do not meet your QoS
solution.
weight1 weight2
weight3 weight4
Specify the weights to specify the percentage of the port that is shaped. The
inverse ratio (1/weight) specifies the shaping bandwidth for this queue.
Separate each value with a space. The range is 0 to 65535.
Release Modification
12.1(11)AX This command was introduced.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing